Hope Spiderless Retainer Chainring - 28t Boost Hope Direct Mount R22 BlackThe R22 features a new tooth profile to work with all major drivetrain types along with updated spider designs, and compatibility with 9 10 11 and 12 Speed drivetrains including SRAM T Type and Shimano HG+ A neat lightweight direct mount retainer ring option for Hope cranksets CNC machined 7075 T6 series aluminum provides the perfect blend of light weight and strength The narrow wide chainring is designed to retain the chain without the need of a